Abstract: A liquid to refrigerant heat exchanger is provided having a stack of nested plates with fluid flow passages defined between the plates. The stack includes a condenser portion and a subcooler portion. A base plate at a bottom end of the stack has a refrigerant outlet port and a receiver bottle joined to it. A receiver flow path extends through a structural connection joining the receiver bottle to the base plate to allow for fluid flow between an internal volume of the receiver bottle and the condenser portion. Another receiver flow path extends through another structural connection to allow for fluid flow between an internal volume of the receiver bottle and the subcooler portion.

Abstract: A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fin structures defining a plurality of hot gas flow channels extending in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

Abstract: A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fin structures defining a plurality of hot gas flow channels. Each of the plurality of hot gas flow channels extends in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

Abstract: A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fm structures defining a plurality of hot gas flow channels. Each of the plurality of hot gas flow channels extends in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

Abstract: A heat exchanger for transferring heat from a hot gas to a fluid includes two or more corrugated fin structures defining a plurality of hot gas flow channels extending in a generally linear first direction. A fluid conduit includes an outer wall at least partially bonded to at least two of the corrugated fin structures. The fluid conduit defines a plurality of sequentially arranged flow passes for the fluid traveling therethrough. Each of the plurality of flow passes directs the fluid in a direction generally perpendicular to the first direction.

Abstract: A liquid to refrigerant heat exchanger is provided having a stack of nested plates with fluid flow passages defined between the plates. The stack includes a condenser portion and a subcooler portion. A base plate at a bottom end of the stack has a refrigerant outlet port and a receiver bottle joined to it. A receiver flow path extends through a structural connection joining the receiver bottle to the base plate to allow for fluid flow between an internal volume of the receiver bottle and the condenser portion. Another receiver flow path extends through another structural connection to allow for fluid flow between an internal volume of the receiver bottle and the subcooler portion.

Abstract: The present invention provides an exhaust gas recirculation cooler for transferring heat from engine exhaust to coolant including a pair of spaced apart headers, a tube body extending between the pair of headers and positioned along a flow path for the coolant and at least partially defining a flow path for the engine exhaust along a length of the tube between the pair of headers, and a corrugated insert supported in an interior of the tube and having a height in a direction of a plurality of corrugations and a width between about 8.6 and about 13.5 times the height. The width can be substantially perpendicular to the length of the tube and can be substantially perpendicular to the height of the insert.

Abstract: A heat exchanger for transferring heat between a first working fluid and a second working fluid, including a pair of spaced apart headers, a number of tubes extending between the pair of headers and providing a flow path for the first working fluid and being positioned along a flow path for the second working fluid, and an insert supportable in one of the tubes and having a fold extending in a direction substantially parallel to the flow path for the first working fluid through the tubes. The fold can define first and second legs of the insert. A dimple can be formed on the first leg and a protrusion can be formed on the second leg opposite to the dimple on the first leg.

Abstract: A heat exchanger for transferring heat between a first working fluid and a second working fluid, including a pair of spaced apart headers, a number of tubes extending between the pair of headers and providing a flow path for the first working fluid and being positioned along a flow path for the second working fluid, and an insert supportable in one of the tubes and having a fold extending in a direction substantially parallel to the flow path for the first working fluid through the tubes. The fold can define first and second legs of the insert. A dimple can be formed on the first leg and a protrusion can be formed on the second leg opposite to the dimple on the first leg.

Abstract: The present invention provides an exhaust gas recirculation cooler for transferring heat from engine exhaust to coolant including a pair of spaced apart headers, a tube body extending between the pair of headers and positioned along a flow path for the coolant and at least partially defining a flow path for the engine exhaust along a length of the tube between the pair of headers, and a corrugated insert supported in an interior of the tube and having a height in a direction of a plurality of corrugations and a width between about 8.6 and about 13.5 times the height. The width can be substantially perpendicular to the length of the tube and can be substantially perpendicular to the height of the insert.

Abstract: An oil cooler with a integral filter includes first and second elongated tubular headers (10, 12) in spaced parallel relation together with tube slots in each of the headers with the tube slots facing at an alignment with one another. Elongated flattened tubes (14) have their ends in aligned ones of the tube slots and are sealed thereto. Fins (18) extend between the tubes (14) in thermal conducting relation therewith. A filter housing (28) is mounted on the oil cooler and an oil filter element (40) is located within the housing (28).

Abstract: A compact rotary compressor unit within internal intercooling includes a rotary shaft (10) with at least one compressor wheel (14,16) mounted thereon for rotation therewith. The compressor wheel (14,16) has an inlet end (18) of relatively small diameter and a radial discharge end (20) of relatively large diameter. A nominally donut-shaped intercooling heat exchanger (42) is centered about the shaft (10) to receive compressed air from the compressor wheel and cool the same. Both the compressor wheel (14,16) and the heat exchanger (42) are confined in a housing (28).